That's according to the World Health Organization.

Beijing's being reluctant to agree to an independent inquiry, and it's taken many months of negotiation for this access to be allowed.

Our China correspondent, Robin Brandt, has more.

It's taken almost exactly a year.

So long, in fact, that Wuhan, the city where the outbreak began, is back to normal.

People aren't packed indoors, hiding from the virus there, now packed in clubs celebrating their freedom.

But after months of negotiation, China has said yes.

So a team of 10 international investigators will come here in a matter of weeks on start looking for answers.

The city of 10 million, where numerous cases were first reported, will be a significant part of their focus.

Was this now infamous market the place where it crossed over into humans?

Where and what did the virus actually come from key questions to try to prevent it happening again.

For some, though, it's a blame game that's already over.

China's secrecy, deceptions and cover up allowed it to spread all over the world, China is already secured a significant agreement from the W H O.

This is not a China only investigation that the insistence of Beijing this is a global investigation on its starting in China.

The W H O has tried before to do what China's President Xi Jinping did back in March and go to the streets of Wuhan on initial team came in July.

But they didn't make it beyond quarantine in Beijing, the full 10 person team hopes to gather samples here.

An interview.

Some of the first known people infected much, though, will depend on working with their Chinese counterparts.

I think it will be very important for the Chinese government toe.

Have transparency so the scientists can look at everything, so I think it will be important for everybody to have open transparent communication.

The U.

K's ambassador to China has spoken about her government's desire to see a shared understanding of the origins of this virus grounded in science.

But at the same time, I've heard from very senior foreign diplomatic voices who express a deep pessimism about an investigation that they fear it will be tarnished from the very outset by political interference from Beijing.

The signs from China's state media are not encouraging.

They are reporting heavily contested claims of co vid in other countries.

Before it was here in China.

One prominent senior reporter just today is stating as fact that there were cases in Spain in March of 2019.

It's all part of an ongoing effort to cast doubt on the overwhelmingly supported conclusion, but it started in humans here in China.